* written by glenn mcgrath with the help of others
* copyright (c) 2001 by glenn mcgrath
*
+ * parts of the version comparison code is plucked from the real dpkg
+ * application which is licensed GPLv2 and
+ * copyright (c) 1995 Ian Jackson <ian@chiark.greenend.org.uk>
+ *
* started life as a busybox implementation of udpkg
*
* licensed under gplv2 or later, see file license in this tarball for details.
*
*/
-#include "busybox.h"
+#include "libbb.h"
+#include <fnmatch.h>
#include "unarchive.h"
/* note: if you vary hash_prime sizes be aware,
* and available file */
#define PACKAGE_HASH_PRIME 10007
typedef struct edge_s {
- unsigned operator:3;
+ unsigned operator:4; /* was:3 */
unsigned type:4;
- unsigned name:14;
- unsigned version:14;
+ unsigned name:16; /* was:14 */
+ unsigned version:16; /* was:14 */
} edge_t;
typedef struct common_node_s {
- unsigned name:14;
- unsigned version:14;
- unsigned num_of_edges:14;
+ unsigned name:16; /* was:14 */
+ unsigned version:16; /* was:14 */
+ unsigned num_of_edges:16; /* was:14 */
edge_t **edge;
} common_node_t;
* likely to be installed at any one time, so there is a bit of leeway here */
#define STATUS_HASH_PRIME 8191
typedef struct status_node_s {
- unsigned package:14; /* has to fit PACKAGE_HASH_PRIME */
- unsigned status:14; /* has to fit STATUS_HASH_PRIME */
+ unsigned package:16; /* was:14 */ /* has to fit PACKAGE_HASH_PRIME */
+ unsigned status:16; /* was:14 */ /* has to fit STATUS_HASH_PRIME */
} status_node_t;
-/* Were statically declared here, but such a big bss is nommu-unfriendly */
-static char **name_hashtable; /* [NAME_HASH_PRIME + 1] */
-static common_node_t **package_hashtable; /* [PACKAGE_HASH_PRIME + 1] */
-static status_node_t **status_hashtable; /* [STATUS_HASH_PRIME + 1] */
+
+/* Globals */
+struct globals {
+ char *name_hashtable[NAME_HASH_PRIME + 1];
+ common_node_t *package_hashtable[PACKAGE_HASH_PRIME + 1];
+ status_node_t *status_hashtable[STATUS_HASH_PRIME + 1];
+};
+#define G (*ptr_to_globals)
+#define name_hashtable (G.name_hashtable )
+#define package_hashtable (G.package_hashtable)
+#define status_hashtable (G.status_hashtable )
+#define INIT_G() do { \
+ SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
+} while (0)
+
/* Even numbers are for 'extras', like ored dependencies or null */
enum edge_type_e {
typedef struct deb_file_s {
char *control_file;
char *filename;
- unsigned package:14;
+ unsigned package:16; /* was:14 */
} deb_file_t;
static void make_hash(const char *key, unsigned *start, unsigned *decrement, const int hash_prime)
{
- unsigned long int hash_num = key[0];
+ unsigned long hash_num = key[0];
int len = strlen(key);
int i;
/* shifts the ascii based value and adds it to previous value
* shift amount is mod 24 because long int is 32 bit and data
* to be shifted is 8, don't want to shift data to where it has
- * no effect*/
- hash_num += ((key[i] + key[i-1]) << ((key[i] * i) % 24));
+ * no effect */
+ hash_num += (key[i] + key[i-1]) << ((key[i] * i) % 24);
}
*start = (unsigned) hash_num % hash_prime;
*decrement = (unsigned) 1 + (hash_num % (hash_prime - 1));
/* this adds the key to the hash table */
static int search_name_hashtable(const char *key)
{
- unsigned probe_address = 0;
- unsigned probe_decrement = 0;
+ unsigned probe_address;
+ unsigned probe_decrement;
make_hash(key, &probe_address, &probe_decrement, NAME_HASH_PRIME);
while (name_hashtable[probe_address] != NULL) {
*/
static unsigned search_status_hashtable(const char *key)
{
- unsigned probe_address = 0;
- unsigned probe_decrement = 0;
+ unsigned probe_address;
+ unsigned probe_decrement;
make_hash(key, &probe_address, &probe_decrement, STATUS_HASH_PRIME);
while (status_hashtable[probe_address] != NULL) {
return probe_address;
}
-/* Need to rethink version comparison, maybe the official dpkg has something i can use ? */
-static int version_compare_part(const char *version1, const char *version2)
+static int order(char x)
{
- int upstream_len1 = 0;
- int upstream_len2 = 0;
- char *name1_char;
- char *name2_char;
- int len1 = 0;
- int len2 = 0;
- int tmp_int;
- int ver_num1;
- int ver_num2;
-
- if (version1 == NULL) {
- version1 = xstrdup("");
- }
- if (version2 == NULL) {
- version2 = xstrdup("");
- }
- upstream_len1 = strlen(version1);
- upstream_len2 = strlen(version2);
-
- while ((len1 < upstream_len1) || (len2 < upstream_len2)) {
- /* Compare non-digit section */
- tmp_int = strcspn(&version1[len1], "0123456789");
- name1_char = xstrndup(&version1[len1], tmp_int);
- len1 += tmp_int;
- tmp_int = strcspn(&version2[len2], "0123456789");
- name2_char = xstrndup(&version2[len2], tmp_int);
- len2 += tmp_int;
- tmp_int = strcmp(name1_char, name2_char);
- free(name1_char);
- free(name2_char);
- if (tmp_int != 0) {
- return tmp_int;
+ return (x == '~' ? -1
+ : x == '\0' ? 0
+ : isdigit(x) ? 0
+ : isalpha(x) ? x
+ : (unsigned char)x + 256
+ );
+}
+
+/* This code is taken from dpkg and modified slightly to work with busybox */
+static int version_compare_part(const char *val, const char *ref)
+{
+ if (!val) val = "";
+ if (!ref) ref = "";
+
+ while (*val || *ref) {
+ int first_diff;
+
+ while ((*val && !isdigit(*val)) || (*ref && !isdigit(*ref))) {
+ int vc = order(*val);
+ int rc = order(*ref);
+ if (vc != rc)
+ return vc - rc;
+ val++;
+ ref++;
}
- /* Compare digits */
- tmp_int = strspn(&version1[len1], "0123456789");
- name1_char = xstrndup(&version1[len1], tmp_int);
- len1 += tmp_int;
- tmp_int = strspn(&version2[len2], "0123456789");
- name2_char = xstrndup(&version2[len2], tmp_int);
- len2 += tmp_int;
- ver_num1 = atoi(name1_char);
- ver_num2 = atoi(name2_char);
- free(name1_char);
- free(name2_char);
- if (ver_num1 < ver_num2) {
- return -1;
+ while (*val == '0')
+ val++;
+ while (*ref == '0')
+ ref++;
+
+ first_diff = 0;
+ while (isdigit(*val) && isdigit(*ref)) {
+ if (first_diff == 0)
+ first_diff = *val - *ref;
+ val++;
+ ref++;
}
- if (ver_num1 > ver_num2) {
+ if (isdigit(*val))
return 1;
- }
+ if (isdigit(*ref))
+ return -1;
+ if (first_diff)
+ return first_diff;
}
return 0;
}
{
char *ch_ver1 = name_hashtable[ver1];
char *ch_ver2 = name_hashtable[ver2];
-
- char epoch1, epoch2;
+ unsigned long epoch1 = 0, epoch2 = 0;
+ char *colon;
char *deb_ver1, *deb_ver2;
- char *ver1_ptr, *ver2_ptr;
char *upstream_ver1;
char *upstream_ver2;
int result;
/* Compare epoch */
- if (ch_ver1[1] == ':') {
- epoch1 = ch_ver1[0];
- ver1_ptr = strchr(ch_ver1, ':') + 1;
- } else {
- epoch1 = '0';
- ver1_ptr = ch_ver1;
+ colon = strchr(ch_ver1, ':');
+ if (colon) {
+ epoch1 = atoi(ch_ver1);
+ ch_ver1 = colon + 1;
}
- if (ch_ver2[1] == ':') {
- epoch2 = ch_ver2[0];
- ver2_ptr = strchr(ch_ver2, ':') + 1;
- } else {
- epoch2 = '0';
- ver2_ptr = ch_ver2;
+ colon = strchr(ch_ver2, ':');
+ if (colon) {
+ epoch2 = atoi(ch_ver2);
+ ch_ver2 = colon + 1;
}
if (epoch1 < epoch2) {
return -1;
}
- else if (epoch1 > epoch2) {
+ if (epoch1 > epoch2) {
return 1;
}
/* Compare upstream version */
- upstream_ver1 = xstrdup(ver1_ptr);
- upstream_ver2 = xstrdup(ver2_ptr);
+ upstream_ver1 = xstrdup(ch_ver1);
+ upstream_ver2 = xstrdup(ch_ver2);
/* Chop off debian version, and store for later use */
deb_ver1 = strrchr(upstream_ver1, '-');
return FALSE;
}
-
static int search_package_hashtable(const unsigned name, const unsigned version, const unsigned operator)
{
- unsigned probe_address = 0;
- unsigned probe_decrement = 0;
+ unsigned probe_address;
+ unsigned probe_decrement;
make_hash(name_hashtable[name], &probe_address, &probe_decrement, PACKAGE_HASH_PRIME);
while (package_hashtable[probe_address] != NULL) {
* FIXME: I don't think this is very efficient, but I thought I'd keep
* it simple for now until it proves to be a problem.
*/
-static int search_for_provides(int needle, int start_at) {
+static int search_for_provides(int needle, int start_at)
+{
int i, j;
common_node_t *p;
for (i = start_at + 1; i < PACKAGE_HASH_PRIME; i++) {
*/
static void add_edge_to_node(common_node_t *node, edge_t *edge)
{
- node->num_of_edges++;
- node->edge = xrealloc(node->edge, sizeof(edge_t) * (node->num_of_edges + 1));
- node->edge[node->num_of_edges - 1] = edge;
+ node->edge = xrealloc_vector(node->edge, 2, node->num_of_edges);
+ node->edge[node->num_of_edges++] = edge;
}
/*
if ((edge_type == EDGE_DEPENDS || edge_type == EDGE_PRE_DEPENDS)
&& (strcmp(field, field2) != 0)
) {
- or_edge = xmalloc(sizeof(edge_t));
+ or_edge = xzalloc(sizeof(edge_t));
or_edge->type = edge_type + 1;
or_edge->name = search_name_hashtable(field);
- or_edge->version = 0; // tracks the number of altenatives
+ //or_edge->version = 0; // tracks the number of alternatives
add_edge_to_node(parent_node, or_edge);
}
edge->version = search_name_hashtable("ANY");
} else {
/* Skip leading ' ' or '(' */
- version += strspn(field2, " (");
+ version += strspn(version, " (");
/* Calculate length of any operator characters */
offset_ch = strspn(version, "<=>");
/* Determine operator */
if (offset_ch > 0) {
if (strncmp(version, "=", offset_ch) == 0) {
edge->operator = VER_EQUAL;
- }
- else if (strncmp(version, "<<", offset_ch) == 0) {
+ } else if (strncmp(version, "<<", offset_ch) == 0) {
edge->operator = VER_LESS;
- }
- else if (strncmp(version, "<=", offset_ch) == 0) {
+ } else if (strncmp(version, "<=", offset_ch) == 0) {
edge->operator = VER_LESS_EQUAL;
- }
- else if (strncmp(version, ">>", offset_ch) == 0) {
+ } else if (strncmp(version, ">>", offset_ch) == 0) {
edge->operator = VER_MORE;
- }
- else if (strncmp(version, ">=", offset_ch) == 0) {
+ } else if (strncmp(version, ">=", offset_ch) == 0) {
edge->operator = VER_MORE_EQUAL;
} else {
bb_error_msg_and_die("illegal operator");
or_edge->version++;
add_edge_to_node(parent_node, edge);
- } while ((field2 = strtok_r(NULL, "|", &line_ptr2)) != NULL);
+ field2 = strtok_r(NULL, "|", &line_ptr2);
+ } while (field2 != NULL);
+
free(line2);
- } while ((field = strtok_r(NULL, ",", &line_ptr1)) != NULL);
+ field = strtok_r(NULL, ",", &line_ptr1);
+ } while (field != NULL);
+
free(line);
}
}
/*
- * Gets the next package field from package_buffer, seperated into the field name
+ * Gets the next package field from package_buffer, separated into the field name
* and field value, it returns the int offset to the first character of the next field
*/
static int read_package_field(const char *package_buffer, char **field_name, char **field_value)
static unsigned fill_package_struct(char *control_buffer)
{
- static const char *const field_names[] = { "Package", "Version",
- "Pre-Depends", "Depends","Replaces", "Provides",
- "Conflicts", "Suggests", "Recommends", "Enhances", 0
- };
+ static const char field_names[] ALIGN1 =
+ "Package\0""Version\0"
+ "Pre-Depends\0""Depends\0""Replaces\0""Provides\0"
+ "Conflicts\0""Suggests\0""Recommends\0""Enhances\0";
common_node_t *new_node = xzalloc(sizeof(common_node_t));
char *field_name;
&field_name, &field_value);
if (field_name == NULL) {
- goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
+ goto fill_package_struct_cleanup;
}
- field_num = index_in_str_array(field_names, field_name);
+ field_num = index_in_strings(field_names, field_name);
switch (field_num) {
case 0: /* Package */
new_node->name = search_name_hashtable(field_value);
return -1;
}
num = search_package_hashtable(new_node->name, new_node->version, VER_EQUAL);
- if (package_hashtable[num] == NULL) {
- package_hashtable[num] = new_node;
- } else {
- free_package(new_node);
- }
+ free_package(package_hashtable[num]);
+ package_hashtable[num] = new_node;
return num;
}
new_status = xasprintf("%s %s %s", name_hashtable[want], name_hashtable[flag], name_hashtable[status]);
status_hashtable[status_node_num]->status = search_name_hashtable(new_status);
free(new_status);
- return;
}
-static const char *describe_status(int status_num) {
- int status_want, status_state ;
+static const char *describe_status(int status_num)
+{
+ int status_want, status_state;
if (status_hashtable[status_num] == NULL || status_hashtable[status_num]->status == 0)
- return "is not installed or flagged to be installed\n";
+ return "is not installed or flagged to be installed";
status_want = get_status(status_num, 1);
status_state = get_status(status_num, 3);
if (status_want == search_name_hashtable("purge"))
return "is marked to be purged";
}
- if (status_want == search_name_hashtable("unknown"))
+ if (status_want == search_name_hashtable("unknown"))
return "is in an indeterminate state";
if (status_want == search_name_hashtable("install"))
return "is marked to be installed";
return "is not installed or flagged to be installed";
}
-
static void index_status_file(const char *filename)
{
FILE *status_file;
status_node_t *status_node = NULL;
unsigned status_num;
- status_file = xfopen(filename, "r");
- while ((control_buffer = xmalloc_fgets_str(status_file, "\n\n")) != NULL) {
+ status_file = xfopen_for_read(filename);
+ while ((control_buffer = xmalloc_fgetline_str(status_file, "\n\n")) != NULL) {
const unsigned package_num = fill_package_struct(control_buffer);
if (package_num != -1) {
status_node = xmalloc(sizeof(status_node_t));
free(control_buffer);
}
fclose(status_file);
- return;
}
static void write_buffer_no_status(FILE *new_status_file, const char *control_buffer)
fprintf(new_status_file, "%s: %s\n", name, value);
}
}
- return;
}
/* This could do with a cleanup */
static void write_status_file(deb_file_t **deb_file)
{
- FILE *old_status_file = xfopen("/var/lib/dpkg/status", "r");
- FILE *new_status_file = xfopen("/var/lib/dpkg/status.udeb", "w");
+ FILE *old_status_file = xfopen_for_read("/var/lib/dpkg/status");
+ FILE *new_status_file = xfopen_for_write("/var/lib/dpkg/status.udeb");
char *package_name;
char *status_from_file;
char *control_buffer = NULL;
int i = 0;
/* Update previously known packages */
- while ((control_buffer = xmalloc_fgets_str(old_status_file, "\n\n")) != NULL) {
- if ((tmp_string = strstr(control_buffer, "Package:")) == NULL) {
+ while ((control_buffer = xmalloc_fgetline_str(old_status_file, "\n\n")) != NULL) {
+ tmp_string = strstr(control_buffer, "Package:");
+ if (tmp_string == NULL) {
continue;
}
write_flag = FALSE;
tmp_string = strstr(control_buffer, "Status:");
if (tmp_string != NULL) {
- /* Seperate the status value from the control buffer */
+ /* Separate the status value from the control buffer */
tmp_string += 7;
tmp_string += strspn(tmp_string, " \n\t");
status_from_file = xstrndup(tmp_string, strcspn(tmp_string, "\n"));
if (strcmp(status_from_file, status_from_hashtable) != 0) {
/* New status isnt exactly the same as old status */
const int state_status = get_status(status_num, 3);
- if ((strcmp("installed", name_hashtable[state_status]) == 0) ||
- (strcmp("unpacked", name_hashtable[state_status]) == 0)) {
+ if ((strcmp("installed", name_hashtable[state_status]) == 0)
+ || (strcmp("unpacked", name_hashtable[state_status]) == 0)
+ ) {
/* We need to add the control file from the package */
i = 0;
while (deb_file[i] != NULL) {
}
}
/* If the package from the status file wasnt handle above, do it now*/
- if (! write_flag) {
+ if (!write_flag) {
fprintf(new_status_file, "%s\n\n", control_buffer);
}
fclose(old_status_file);
fclose(new_status_file);
-
/* Create a separate backfile to dpkg */
if (rename("/var/lib/dpkg/status", "/var/lib/dpkg/status.udeb.bak") == -1) {
- struct stat stat_buf;
- xstat("/var/lib/dpkg/status", &stat_buf);
+ if (errno != ENOENT)
+ bb_error_msg_and_die("cannot create backup status file");
/* Its ok if renaming the status file fails because status
* file doesnt exist, maybe we are starting from scratch */
bb_error_msg("no status file found, creating new one");
}
- if (rename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status") == -1) {
- bb_error_msg_and_die("DANGER: cannot create status file, "
- "you need to manually repair your status file");
- }
+ xrename("/var/lib/dpkg/status.udeb", "/var/lib/dpkg/status");
}
/* This function returns TRUE if the given package can satisfy a
return 0;
}
-static int check_deps(deb_file_t **deb_file, int deb_start, int dep_max_count)
+static int check_deps(deb_file_t **deb_file, int deb_start /*, int dep_max_count - ?? */)
{
int *conflicts = NULL;
int conflicts_num = 0;
* installed package for conflicts*/
while (deb_file[i] != NULL) {
const unsigned package_num = deb_file[i]->package;
- conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
conflicts[conflicts_num] = package_num;
conflicts_num++;
/* add provides to conflicts list */
new_node->version = package_hashtable[package_num]->edge[j]->version;
package_hashtable[conflicts_package_num] = new_node;
}
- conflicts = xrealloc(conflicts, sizeof(int) * (conflicts_num + 1));
+ conflicts = xrealloc_vector(conflicts, 2, conflicts_num);
conflicts[conflicts_num] = conflicts_package_num;
conflicts_num++;
}
const edge_t *package_edge = package_node->edge[j];
unsigned package_num;
- if (package_edge->type == EDGE_OR_PRE_DEPENDS ||
- package_edge->type == EDGE_OR_DEPENDS) { /* start an EDGE_OR_ list */
+ if (package_edge->type == EDGE_OR_PRE_DEPENDS
+ || package_edge->type == EDGE_OR_DEPENDS
+ ) { /* start an EDGE_OR_ list */
number_of_alternatives = package_edge->version;
root_of_alternatives = package_edge;
continue;
- } else if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
+ }
+ if (number_of_alternatives == 0) { /* not in the middle of an EDGE_OR_ list */
number_of_alternatives = 1;
root_of_alternatives = NULL;
}
name_hashtable[package_node->name],
package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
name_hashtable[root_of_alternatives->name]);
- else
- bb_error_msg_and_die(
- "package %s %sdepends on %s, which %s\n",
- name_hashtable[package_node->name],
- package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
- name_hashtable[package_edge->name],
- describe_status(status_num));
- } else if (result == 0 && number_of_alternatives) {
+ bb_error_msg_and_die(
+ "package %s %sdepends on %s, which %s\n",
+ name_hashtable[package_node->name],
+ package_edge->type == EDGE_PRE_DEPENDS ? "pre-" : "",
+ name_hashtable[package_edge->name],
+ describe_status(status_num));
+ }
+ if (result == 0 && number_of_alternatives) {
/* we've found a package which
* satisfies the dependency,
* so skip over the rest of
static char **create_list(const char *filename)
{
FILE *list_stream;
- char **file_list = NULL;
- char *line = NULL;
- int count = 0;
+ char **file_list;
+ char *line;
+ int count;
/* don't use [xw]fopen here, handle error ourself */
- list_stream = fopen(filename, "r");
+ list_stream = fopen_for_read(filename);
if (list_stream == NULL) {
return NULL;
}
- while ((line = xmalloc_getline(list_stream)) != NULL) {
- file_list = xrealloc(file_list, sizeof(char *) * (count + 2));
- file_list[count] = line;
- count++;
+ file_list = NULL;
+ count = 0;
+ while ((line = xmalloc_fgetline(list_stream)) != NULL) {
+ file_list = xrealloc_vector(file_list, 2, count);
+ file_list[count++] = line;
+ /*file_list[count] = NULL; - xrealloc_vector did it */
}
fclose(list_stream);
- if (count == 0) {
- return NULL;
- } else {
- file_list[count] = NULL;
- return file_list;
- }
+ return file_list;
}
/* maybe i should try and hook this into remove_file.c somehow */
static int remove_file_array(char **remove_names, char **exclude_names)
{
struct stat path_stat;
- int match_flag;
- int remove_flag = FALSE;
- int i,j;
+ int remove_flag = 1; /* not removed anything yet */
+ int i, j;
if (remove_names == NULL) {
- return FALSE;
+ return 0;
}
for (i = 0; remove_names[i] != NULL; i++) {
- match_flag = FALSE;
if (exclude_names != NULL) {
- for (j = 0; exclude_names[j] != 0; j++) {
+ for (j = 0; exclude_names[j] != NULL; j++) {
if (strcmp(remove_names[i], exclude_names[j]) == 0) {
- match_flag = TRUE;
- break;
+ goto skip;
}
}
}
- if (!match_flag) {
- if (lstat(remove_names[i], &path_stat) < 0) {
- continue;
- }
- if (S_ISDIR(path_stat.st_mode)) {
- if (rmdir(remove_names[i]) != -1) {
- remove_flag = TRUE;
- }
- } else {
- if (unlink(remove_names[i]) != -1) {
- remove_flag = TRUE;
- }
- }
+ /* TODO: why we are checking lstat? we can just try rm/rmdir */
+ if (lstat(remove_names[i], &path_stat) < 0) {
+ continue;
+ }
+ if (S_ISDIR(path_stat.st_mode)) {
+ remove_flag &= rmdir(remove_names[i]); /* 0 if no error */
+ } else {
+ remove_flag &= unlink(remove_names[i]); /* 0 if no error */
}
+ skip:
+ continue;
}
- return remove_flag;
+ return (remove_flag == 0);
}
-static int run_package_script(const char *package_name, const char *script_type)
+static void run_package_script_or_die(const char *package_name, const char *script_type)
{
- struct stat path_stat;
char *script_path;
int result;
script_path = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, script_type);
- /* If the file doesnt exist is isnt a fatal */
- result = lstat(script_path, &path_stat) < 0 ? EXIT_SUCCESS : system(script_path);
+ /* If the file doesnt exist is isnt fatal */
+ result = access(script_path, F_OK) ? EXIT_SUCCESS : system(script_path);
free(script_path);
- return result;
+ if (result)
+ bb_error_msg_and_die("%s failed, exit code %d", script_type, result);
}
-static const char *all_control_files[] = {"preinst", "postinst", "prerm", "postrm",
- "list", "md5sums", "shlibs", "conffiles", "config", "templates", NULL };
+/*
+The policy manual defines what scripts get called when and with
+what arguments. I realize that busybox does not support all of
+these scenarios, but it does support some of them; it does not,
+however, run them with any parameters in run_package_script_or_die().
+Here are the scripts:
+
+preinst install
+preinst install <old_version>
+preinst upgrade <old_version>
+preinst abort_upgrade <new_version>
+postinst configure <most_recent_version>
+postinst abort-upgade <new_version>
+postinst abort-remove
+postinst abort-remove in-favour <package> <version>
+postinst abort-deconfigure in-favor <failed_install_package> removing <conflicting_package> <version>
+prerm remove
+prerm upgrade <new_version>
+prerm failed-upgrade <old_version>
+prerm remove in-favor <package> <new_version>
+prerm deconfigure in-favour <package> <version> removing <package> <version>
+postrm remove
+postrm purge
+postrm upgrade <new_version>
+postrm failed-upgrade <old_version>
+postrm abort-install
+postrm abort-install <old_version>
+postrm abort-upgrade <old_version>
+postrm disappear <overwriter> <version>
+*/
+static const char *const all_control_files[] = {
+ "preinst", "postinst", "prerm", "postrm",
+ "list", "md5sums", "shlibs", "conffiles",
+ "config", "templates"
+};
static char **all_control_list(const char *package_name)
{
char **remove_files;
/* Create a list of all /var/lib/dpkg/info/<package> files */
- remove_files = xzalloc(sizeof(all_control_files));
- while (all_control_files[i]) {
- remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, all_control_files[i]);
+ remove_files = xzalloc(sizeof(all_control_files) + sizeof(char*));
+ while (i < ARRAY_SIZE(all_control_files)) {
+ remove_files[i] = xasprintf("/var/lib/dpkg/info/%s.%s",
+ package_name, all_control_files[i]);
i++;
}
static void free_array(char **array)
{
-
if (array) {
unsigned i = 0;
while (array[i]) {
* the status_hashtable to retrieve the info. This results in smaller code than
* scanning the status file. The resulting list, however, is unsorted.
*/
-static void list_packages(void)
+static void list_packages(const char *pattern)
{
int i;
puts("+++-==============-==============");
/* go through status hash, dereference package hash and finally strings */
- for (i=0; i<STATUS_HASH_PRIME+1; i++) {
-
+ for (i = 0; i < STATUS_HASH_PRIME+1; i++) {
if (status_hashtable[i]) {
const char *stat_str; /* status string */
const char *name_str; /* package name */
name_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->name];
vers_str = name_hashtable[package_hashtable[status_hashtable[i]->package]->version];
+ if (pattern && fnmatch(pattern, name_str, 0))
+ continue;
+
/* get abbreviation for status field 1 */
s1 = stat_str[0] == 'i' ? 'i' : 'r';
/* get abbreviation for status field 2 */
- for (j=0, spccnt=0; stat_str[j] && spccnt<2; j++) {
+ for (j = 0, spccnt = 0; stat_str[j] && spccnt < 2; j++) {
if (stat_str[j] == ' ') spccnt++;
}
s2 = stat_str[j];
/* print out the line formatted like Debian dpkg */
printf("%c%c %-14s %s\n", s1, s2, name_str, vers_str);
}
- }
+ }
}
static void remove_package(const unsigned package_num, int noisy)
char **exclude_files;
char list_name[package_name_length + 25];
char conffile_name[package_name_length + 30];
- int return_value;
if (noisy)
printf("Removing %s (%s)...\n", package_name, package_version);
- /* run prerm script */
- return_value = run_package_script(package_name, "prerm");
- if (return_value == -1) {
- bb_error_msg_and_die("script failed, prerm failure");
- }
+ /* Run prerm script */
+ run_package_script_or_die(package_name, "prerm");
/* Create a list of files to remove, and a separate list of those to keep */
- sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
remove_files = create_list(list_name);
- sprintf(conffile_name, "/var/lib/dpkg/info/%s.conffiles", package_name);
+ sprintf(conffile_name, "/var/lib/dpkg/info/%s.%s", package_name, "conffiles");
exclude_files = create_list(conffile_name);
/* Some directories can't be removed straight away, so do multiple passes */
- while (remove_file_array(remove_files, exclude_files)) /*repeat */;
+ while (remove_file_array(remove_files, exclude_files))
+ continue;
free_array(exclude_files);
free_array(remove_files);
- /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
- exclude_files = xzalloc(sizeof(char*) * 3);
+ /* Create a list of files in /var/lib/dpkg/info/<package>.* to keep */
+ exclude_files = xzalloc(sizeof(exclude_files[0]) * 3);
exclude_files[0] = xstrdup(conffile_name);
- exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.postrm", package_name);
+ exclude_files[1] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
/* Create a list of all /var/lib/dpkg/info/<package> files */
remove_files = all_control_list(package_name);
free_array(remove_files);
free_array(exclude_files);
- /* rename <package>.conffile to <package>.list */
+ /* rename <package>.conffiles to <package>.list
+ * The conffiles control file isn't required in Debian packages, so don't
+ * error out if it's missing. */
rename(conffile_name, list_name);
/* Change package status */
printf("Purging %s (%s)...\n", package_name, package_version);
- /* run prerm script */
- if (run_package_script(package_name, "prerm") != 0) {
- bb_error_msg_and_die("script failed, prerm failure");
- }
+ /* Run prerm script */
+ run_package_script_or_die(package_name, "prerm");
/* Create a list of files to remove */
- sprintf(list_name, "/var/lib/dpkg/info/%s.list", package_name);
+ sprintf(list_name, "/var/lib/dpkg/info/%s.%s", package_name, "list");
remove_files = create_list(list_name);
- exclude_files = xzalloc(sizeof(char*));
-
/* Some directories cant be removed straight away, so do multiple passes */
- while (remove_file_array(remove_files, exclude_files)) /* repeat */;
+ while (remove_file_array(remove_files, NULL))
+ continue;
free_array(remove_files);
/* Create a list of all /var/lib/dpkg/info/<package> files */
remove_files = all_control_list(package_name);
+
+ /* Delete all of them except the postrm script */
+ exclude_files = xzalloc(sizeof(exclude_files[0]) * 2);
+ exclude_files[0] = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "postrm");
remove_file_array(remove_files, exclude_files);
- free_array(remove_files);
- free(exclude_files);
+ free_array(exclude_files);
- /* run postrm script */
- if (run_package_script(package_name, "postrm") == -1) {
- bb_error_msg_and_die("postrm fialure.. set status to what?");
- }
+ /* Run and remove postrm script */
+ run_package_script_or_die(package_name, "postrm");
+ remove_file_array(remove_files, NULL);
+
+ free_array(remove_files);
/* Change package status */
set_status(status_num, "not-installed", 3);
tar_handle->src_fd = ar_handle->src_fd;
/* We don't care about data.tar.* or debian-binary, just control.tar.* */
-#ifdef CONFIG_FEATURE_DEB_TAR_GZ
+#if ENABLE_FEATURE_SEAMLESS_GZ
llist_add_to(&(ar_handle->accept), (char*)"control.tar.gz");
#endif
-#ifdef CONFIG_FEATURE_DEB_TAR_BZ2
+#if ENABLE_FEATURE_SEAMLESS_BZ2
llist_add_to(&(ar_handle->accept), (char*)"control.tar.bz2");
#endif
/* Assign the tar handle as a subarchive of the ar handle */
ar_handle->sub_archive = tar_handle;
-
- return;
}
static void init_archive_deb_data(archive_handle_t *ar_handle)
tar_handle->src_fd = ar_handle->src_fd;
/* We don't care about control.tar.* or debian-binary, just data.tar.* */
-#ifdef CONFIG_FEATURE_DEB_TAR_GZ
+#if ENABLE_FEATURE_SEAMLESS_GZ
llist_add_to(&(ar_handle->accept), (char*)"data.tar.gz");
#endif
-#ifdef CONFIG_FEATURE_DEB_TAR_BZ2
+#if ENABLE_FEATURE_SEAMLESS_BZ2
llist_add_to(&(ar_handle->accept), (char*)"data.tar.bz2");
#endif
/* Assign the tar handle as a subarchive of the ar handle */
ar_handle->sub_archive = tar_handle;
-
- return;
}
static char *deb_extract_control_file_to_buffer(archive_handle_t *ar_handle, llist_t *myaccept)
return ar_handle->sub_archive->buffer;
}
-static void data_extract_all_prefix(archive_handle_t *archive_handle)
+static void FAST_FUNC data_extract_all_prefix(archive_handle_t *archive_handle)
{
char *name_ptr = archive_handle->file_header->name;
archive_handle->file_header->name = xasprintf("%s%s", archive_handle->buffer, name_ptr);
data_extract_all(archive_handle);
}
- return;
}
static void unpack_package(deb_file_t *deb_file)
char *list_filename;
archive_handle_t *archive_handle;
FILE *out_stream;
- llist_t *accept_list = NULL;
- int i = 0;
+ llist_t *accept_list;
+ int i;
/* If existing version, remove it first */
if (strcmp(name_hashtable[get_status(status_num, 3)], "installed") == 0) {
}
/* Extract control.tar.gz to /var/lib/dpkg/info/<package>.filename */
- info_prefix = xasprintf("/var/lib/dpkg/info/%s.", package_name);
+ info_prefix = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "");
archive_handle = init_archive_deb_ar(deb_file->filename);
init_archive_deb_control(archive_handle);
- while (all_control_files[i]) {
+ accept_list = NULL;
+ i = 0;
+ while (i < ARRAY_SIZE(all_control_files)) {
char *c = xasprintf("./%s", all_control_files[i]);
llist_add_to(&accept_list, c);
i++;
archive_handle->sub_archive->filter = filter_accept_list;
archive_handle->sub_archive->action_data = data_extract_all_prefix;
archive_handle->sub_archive->buffer = info_prefix;
- archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
+ archive_handle->sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
unpack_ar_archive(archive_handle);
/* Run the preinst prior to extracting */
- if (run_package_script(package_name, "preinst") != 0) {
- /* when preinst returns exit code != 0 then quit installation process */
- bb_error_msg_and_die("subprocess pre-installation script returned error");
- }
+ run_package_script_or_die(package_name, "preinst");
/* Extract data.tar.gz to the root directory */
archive_handle = init_archive_deb_ar(deb_file->filename);
init_archive_deb_data(archive_handle);
archive_handle->sub_archive->action_data = data_extract_all_prefix;
archive_handle->sub_archive->buffer = (char*)"/"; /* huh? */
- archive_handle->sub_archive->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
+ archive_handle->sub_archive->ah_flags |= ARCHIVE_UNLINK_OLD;
unpack_ar_archive(archive_handle);
/* Create the list file */
- list_filename = xasprintf("/var/lib/dpkg/info/%s.list", package_name);
- out_stream = xfopen(list_filename, "w");
+ list_filename = xasprintf("/var/lib/dpkg/info/%s.%s", package_name, "list");
+ out_stream = xfopen_for_write(list_filename);
while (archive_handle->sub_archive->passed) {
/* the leading . has been stripped by data_extract_all_prefix already */
fputs(archive_handle->sub_archive->passed->data, out_stream);
printf("Setting up %s (%s)...\n", package_name, package_version);
/* Run the postinst script */
- if (run_package_script(package_name, "postinst") != 0) {
- /* TODO: handle failure gracefully */
- bb_error_msg_and_die("postrm failure.. set status to what?");
- }
+ /* TODO: handle failure gracefully */
+ run_package_script_or_die(package_name, "postinst");
+
/* Change status to reflect success */
set_status(status_num, "install", 1);
set_status(status_num, "installed", 3);
}
-int dpkg_main(int argc, char **argv)
+int dpkg_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int dpkg_main(int argc UNUSED_PARAM, char **argv)
{
deb_file_t **deb_file = NULL;
status_node_t *status_node;
OPT_purge = 0x10,
OPT_remove = 0x20,
OPT_unpack = 0x40,
- REQ_package_name = 0x8000,
- REQ_filename = 0x4000,
};
- opt = getopt32(argc, argv, "CF:ilPru", &str_f);
- if (opt & OPT_configure) opt |= REQ_package_name; // -C
+ INIT_G();
+
+ opt = getopt32(argv, "CF:ilPru", &str_f);
+ //if (opt & OPT_configure) ... // -C
if (opt & OPT_force_ignore_depends) { // -F (--force in official dpkg)
if (strcmp(str_f, "depends"))
opt &= ~OPT_force_ignore_depends;
}
- if (opt & OPT_install) opt |= REQ_filename; // -i
+ //if (opt & OPT_install) ... // -i
//if (opt & OPT_list_installed) ... // -l
- if (opt & OPT_purge) opt |= REQ_package_name; // -P
- if (opt & OPT_remove) opt |= REQ_package_name; // -r
- if (opt & OPT_unpack) opt |= REQ_filename; // -u (--unpack in official dpkg)
- argc -= optind;
+ //if (opt & OPT_purge) ... // -P
+ //if (opt & OPT_remove) ... // -r
+ //if (opt & OPT_unpack) ... // -u (--unpack in official dpkg)
argv += optind;
/* check for non-option argument if expected */
- if (!opt || (!argc && !(opt && OPT_list_installed)))
+ if (!opt || (!argv[0] && !(opt && OPT_list_installed)))
bb_show_usage();
- name_hashtable = xzalloc(sizeof(name_hashtable[0]) * (NAME_HASH_PRIME + 1));
- package_hashtable = xzalloc(sizeof(package_hashtable[0]) * (PACKAGE_HASH_PRIME + 1));
- status_hashtable = xzalloc(sizeof(status_hashtable[0]) * (STATUS_HASH_PRIME + 1));
-
/* puts("(Reading database ... xxxxx files and directories installed.)"); */
index_status_file("/var/lib/dpkg/status");
/* if the list action was given print the installed packages and exit */
if (opt & OPT_list_installed) {
- list_packages();
+ list_packages(argv[0]);
return EXIT_SUCCESS;
}
/* Read arguments and store relevant info in structs */
while (*argv) {
/* deb_count = nb_elem - 1 and we need nb_elem + 1 to allocate terminal node [NULL pointer] */
- deb_file = xrealloc(deb_file, sizeof(deb_file_t *) * (deb_count + 2));
- deb_file[deb_count] = xzalloc(sizeof(deb_file_t));
- if (opt & REQ_filename) {
+ deb_file = xrealloc_vector(deb_file, 2, deb_count);
+ deb_file[deb_count] = xzalloc(sizeof(deb_file[0][0]));
+ if (opt & (OPT_install | OPT_unpack)) {
+ /* -i/-u: require filename */
archive_handle_t *archive_handle;
llist_t *control_list = NULL;
deb_file[deb_count]->package = (unsigned) package_num;
/* Add the package to the status hashtable */
- if (opt & (OPT_unpack|OPT_install)) {
+ if (opt & (OPT_unpack | OPT_install)) {
/* Try and find a currently installed version of this package */
status_num = search_status_hashtable(name_hashtable[package_hashtable[deb_file[deb_count]->package]->name]);
/* If no previous entry was found initialise a new entry */
set_status(status_num, "reinstreq", 2);
}
}
- }
- else if (opt & REQ_package_name) {
+ } else if (opt & (OPT_configure | OPT_purge | OPT_remove)) {
+ /* -C/-p/-r: require package name */
deb_file[deb_count]->package = search_package_hashtable(
search_name_hashtable(argv[0]),
search_name_hashtable("ANY"), VER_ANY);
bb_error_msg_and_die("%s is already removed", name_hashtable[package_hashtable[package_num]->name]);
}
set_status(status_num, "deinstall", 1);
- }
- else if (opt & OPT_purge) {
+ } else if (opt & OPT_purge) {
/* if package status is "conf-files" then its ok */
if (strcmp(name_hashtable[state_status], "not-installed") == 0) {
bb_error_msg_and_die("%s is already purged", name_hashtable[package_hashtable[package_num]->name]);
deb_count++;
argv++;
}
+ if (!deb_count)
+ bb_error_msg_and_die("no package files specified");
deb_file[deb_count] = NULL;
/* Check that the deb file arguments are installable */
if (!(opt & OPT_force_ignore_depends)) {
- if (!check_deps(deb_file, 0, deb_count)) {
+ if (!check_deps(deb_file, 0 /*, deb_count*/)) {
bb_error_msg_and_die("dependency check failed");
}
}
}
for (i = 0; i < PACKAGE_HASH_PRIME; i++) {
- if (package_hashtable[i] != NULL) {
- free_package(package_hashtable[i]);
- }
+ free_package(package_hashtable[i]);
}
for (i = 0; i < STATUS_HASH_PRIME; i++) {
projects / oweals / busybox.git / blobdiff